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    • 1. 发明专利
    • Slack preventing screw
    • 防滑螺丝
    • JP2011252593A
    • 2011-12-15
    • JP2010128969
    • 2010-06-04
    • Furiya Giken Co Ltd株式会社降矢技研
    • SAEGUSA RYOICHI
    • F16B33/02F16B39/30
    • PROBLEM TO BE SOLVED: To provide a screw having a sure slack preventing function and an initial slack preventing effect even when the screw is unscrewed and even when the screw is fastened again by making a leading side flank shape and a pressure side flank shape in a thread a specific shape and providing the distal end part of the thread with spring property, and having a sure slack preventing effect by providing a trough part of the thread with a projection having the height interfering with a thread top part of a female thread.SOLUTION: In a leading side flank and a pressure side flank of the thread, a flank angle of the thread top part is smaller than a trough part flank angle, and a flank angle displacement point of the pressure side flank is closer to the thread top part than a flank angle displacement point of the leading side flank.
    • 要解决的问题:即使当螺钉拧下时,即使当通过使前侧侧面形状和压力侧面侧再次固定螺钉时,也提供具有可靠的防松功能和初始松弛防止效果的螺钉 在螺纹中形成特定形状并且提供具有弹簧性质的螺纹的远端部分,并且具有确保的松弛防止效果,通过为螺纹的槽部提供具有与母体的螺纹顶部部分相干扰的高度的突起 线。 解决方案:在螺纹的前侧面和压力侧面中,螺纹顶部的侧面角小于槽部侧面角,并且压力侧面的侧面角位移点更接近 螺纹顶部比前侧面的侧面角位移点。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Tapping screw with slack prevention
    • 带防滑螺栓的螺丝
    • JP2013148218A
    • 2013-08-01
    • JP2012272825
    • 2012-12-13
    • Furiya Giken Co Ltd株式会社降矢技研
    • SAEGUSA RYOICHI
    • F16B25/04F16B39/30
    • PROBLEM TO BE SOLVED: To provide a tapping screw with slack prevention, having a function of definite slack prevention and maintains an initial slack prevention effect when after taking off a screw and then fastening again.SOLUTION: In a tapping screw, a shape of a thread at a base side is different from a shape of a thread at a tip side. The flank angle of the thread crest at the tip side is greater than the flank angle of the thread crest at the base side. Also, the height of the thread crest at the tip side is higher than the height of the thread crest at the base side. Further, in a leading side flank and a pressure side flank of the thread crest at the base side, the flank angle at the thread crest is smaller than the flank angle of a valley, while a flank displacement point of the pressure side flank has a shape similar to the thread crest rather than a flank angle displacement point of the leading side flank.
    • 要解决的问题:提供具有防松弛性的自攻螺钉,具有确定的松弛防止功能,并且在拆下螺丝后再次固定时保持初始防松效果。解决方案:在自攻螺钉中,形状为 在基部侧的线不同于尖端侧的线的形状。 螺纹牙尖在尖端侧的侧面角大于基部侧的螺纹牙顶的侧面角。 此外,顶端侧的线顶高度高于基端侧的线牙顶部的高度。 此外,在基部侧的螺纹牙顶的前侧面和压力侧面中,螺纹牙顶处的侧面角小于谷部的侧面角,而压力侧面的侧面位移点具有 形状类似于螺纹牙顶,而不是前侧面的侧面角位移点。